Having trouble with this HW question (both parts). Batteries are rated in terms of ampere-hours (A-h). For example, a battery that can produce a current of 2.00 A for 3.00 h is rated at 6.00 A·h.(a) What is the total energy stored in a 9.0 V battery rated at 54.0 A-h?kWh(b) At $0.0560 per kilowatt-hour, what is the value of the electricity produced by this battery? NOTE: Enter your response with hundredths precision.

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Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter21: Current And Direct Current Circuits

Section: Chapter Questions

Problem 19P

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Given that V= J/A-s and 1 Kwh = 3.6 x106 J, what does it cost to operate a window-type air conditioning for one hour if the unit requires a 10-Amp current at 110V and electric energy costs 5 cents per Kwh? Compute the cost at 5.0 cents/Kwh of operating an electric motor that takes 15 Amp at 110V.
The potential difference across a resting neuron in thehuman body is about 75.0 mV and carries a current of about0.200 mA. How much power does the neuron release?
A certain person will experience a mild electric shock when the current between two fingers exceeds 72uA. If. The resistance between their thumb and index finger is measured to be 215ohms, how much voltage can be applied before they feel a mild shock? a. 15.5uV b. 33.5uV c. 29.9uV d. 29.9V e.15.5V
The potential difference across a resting neuron in the human body is about 75.0 mV and carries a current of about 0.200 mA. How much power does the neuron release? How many electrons will flow in a resting neuron?
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The 400 V battery of a Tesla Model S electric car stores 3.0 x 108 J of energy. At 65 mph, the car can drive 250 mi before the battery is depleted. At this speed, what is the current delivered by the battery?
On a sunny day, a rooftop solar panel delivers 80 W of power to the house at an emf of 17 V. How much current flows through the panel?
What is the power of a 1.00 X 102 MV lightning bolt having a current of 2.00 X 104 A ?
Batteries are rated in terms of ampere - hours (A ⋅ h). For example,a battery that can deliver a current of 3.0 A for 5.0 h is ratedat 15 A ? h. (a) What is the total energy, in kilowatt - hours, storedin a 12 - V battery rated at 55 A ⋅ h? (b) At $0.12 per kilowatthour,what is the value of the electricity that can be producedby this battery?
Assuming 95.0% efficiency for the conversion of electrical power by the motor, what current must the 12.0-V batteries of a 750-kg electric car be able to supply: (a) To accelerate from rest to 25.0 m/s in 1.00 min? (b) To climb a 2.00×102 -m - high hill in 2.00 min at a constant 25.0-m/s speed while exerting 5.00×102 N of force to overcome air resistance and friction? (c) To travel at a constant 25.0-m/s speed, exerting a 5.00×102 N force to overcome air resistance and friction?
A car battery with a 12 V emf and an internal resistance of 0.040 is being charged with a current of 50 A. What are (a) the potential difference V across the terminals, (b) the rate Pr of energy dissipation inside the battery, and (c) the rate Pemf of energy conversion to chemical form? When the battery is used to supply 50 A to the starter motor, what are (d) V and (e) Pr?
A portable CD player operates with a current of 18 mA at a potential difference of 4.3 V. What is the power usage of the player?

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